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Intel Sandy Bridge-E
30 November 2011

This month saw the release of Intel Sandy Bridge-E processors for the extreme / high-end enthusiast desktop market. Two models are available immediately; Core i7 3930K and 3960X, both of which offers 6-cores, 12-threads and a Quad-Channel DDR3-1600 system memory interface. They do not have integrated graphics and will offer a larger L3 cache compared to the existing Core i7 2600K and 2700K processors (LGA 1155 Sandy Bridge) released in January this year. Performance-wise they perform slightly faster for single-threaded applications (due to the larger cache) and up to 50% faster for multi-threaded applications (thanks to having 50% more threads).

Image

With the new chips comes a new LGA 2011 socket and the supporting Intel X79 chipset. It replaces Intel's LGA 1366 socket and will have 2,011 protruding pins which touch contact points on the underside of the new processors. The new socket and chipset is expected to be forward compatible with upcoming Ivy Bridge-E processors next year.

Desktop processors

Name
Cores
Threads
Frequency
Turbo Boost
L2 cache
L3 cache
TDP
Release Date
Core i7 Extreme 3960X
6
12
3.30GHz
3.90GHz 6 x 256KB 15MB
130W
14 November 2011
Core i7 3930K 6
12
3.20GHz 3.80GHz
6 x 256KB 12MB
130W
14 November 2011
Core i7 3820 4
8
3.60GHz 3.90GHz
4 x 256KB 10MB
130W
Q2 2012

Image

Sandy Bridge desktop processors have corresponding Xeon parts, the Xeon E3 series. Sandy Bridge E will gain similar counterparts known as the Xeon E5 series and will also use the LGA 2011 socket. The Xeon E5-1650 and E5-1660 will be the equivalent counter parts to the Core i7 3930K and 3960X respectively.

Server processors

Name
Cores
Threads
Frequency
Turbo Boost
L2 cache
L3 cache
TDP
Release Date
Xeon E5 1660  6
12
3.30GHz
3.90GHz 6 x 256KB 15MB
130W
Q1 2012
Xeon E5 1650 6
12
3.20GHz 3.80GHz
6 x 256KB 12MB
130W
Q1 2012  
Xeon E5 1620 4
8
3.60GHz 3.90GHz
4 x 256KB 10MB
130W
Q1 2012


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